"Encyclopedic" is right. This is an exhaustive (possibly exhausting) history of the processes employed over two millennia for making books by hand. The flood of detail is a little overwhelming. Avrin is an interesting writer most of the time, it's just that there's an awful lot to absorb. The major omission in my mind is that that writing in China and the rest of the Far East is not given much attention. But she does discuss, at great length, the development of scripts and the writing and information-preserving practices of Mesopotamia, Egypt, Israel and the Jewish diaspora, Greece, the Roman Empire, the Islamic world, and medieval Europe up to Gutenberg. There are also chapters focusing on papermaking and bookbinding practices as these developed in medieval Europe: papermaking was new, replacing papyrus and parchment, and bindings were becoming fabulously decorated and embellished.